/*
 * Copyright (c) 2010 Curtis Boyden.  All rights reserved. 
 * This software was developed by Curtis Boyden and is provided under the terms 
 * of the GNU Lesser General Public License, Version 2.1. You may not use 
 * this file except in compliance with the license. If you need a copy of the license, 
 * please go to http://www.gnu.org/licenses/lgpl-2.1.txt. The Original Code is ejMud
 * (Ewerp Java MUD).  The Initial Developer is Curtis Boyden.
 *
 * Software distributed under the GNU Lesser Public License is distributed on an "AS IS" 
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or  implied. Please refer to 
 * the license for the specific language governing your rights and limitations.
*/

package com.ewerp.mud.commands;

import com.ewerp.mud.characters.ISessionBoundCharacter;
import com.ewerp.mud.security.permissions.AdminPermission;
import com.ewerp.mud.security.permissions.IPermission;

public abstract class AccessControlledCommand extends BaseCommand {

    protected static final IPermission[] STANDARD_ADMIN_ROLE = new IPermission[] {new AdminPermission()};
    
    @Override
    public void execute() {
        boolean execute = false;
        if(getSource() instanceof ISessionBoundCharacter) {
            ISessionBoundCharacter sbc = (ISessionBoundCharacter)getSource();
            for(IPermission permission : getPermissions()) {
                if(sbc.getPermissions().contains(permission)) {
                    execute = true;
                    break;
                }
            }
        }
        
        if(execute) {
            doExecute();
        } else {
            System.err.println("Failed to execute command: " + getClass() + " - Permission denied.");
        }
    }
    
    public abstract void doExecute();
    
    public abstract IPermission[] getPermissions();

}
